Oldcatlady... I just set my blocks out on the porch still in their stack overnight and all was good in the morning. My son has allergies to smoke but after I brought them in the next morning. I realize there are smokers here and don't want to scare them away either as I would miss out on so many wonderful blocks and we all really don't want to miss any of these lol. Just wanted to tell you guys that I have mine sitting on my sewing table so that I can work on it after the holidays and have to say my two year old daughter LOVES them. She keeps taking them to put on the floor and lay on them lol. I guess this will end up bein her quilt lol